Thangamani Seenivasan

General Surgery
Oncologic Surgery
Breast Surgery
Advanced Laparoscopic Surgery
Robotic Surgery

  • Dr. Seenivasan
  • Dr. Seenivasan
  • Dr. Seenivasan

Dr. Thangamani Seenivasan has been in practice with Dr. Lee and Dr. Imegwu since completing his fellowship training in surgical oncology in 2003. At Somerset Surgical Associates, he treats patients with compassion and respect, whether counseling on treatment or providing palliative care to relieve suffering. He is well-versed in caring for patients with general surgical issues, and has extensive experience in treating patients with cancers of the stomach, liver, and pancreas. Dr. Seenivasan has developed protocols to treat patients whose cancers have spread to the liver, by using radio-frequency ablation. He is an adept practitioner of robotic surgeries and advanced laparoscopic techniques.

Dr. Seenivasan is currently an officer of the Medical Staff at Somerset Medical Center and is the Director of Surgical Oncology of the Steeplechase Cancer Center at Robert Wood Johnson University Hospital Somerset. He is also the appointed Cancer Liaison Physician of the Cancer Center as per recognition by the American College of Surgeons. In the past, Dr. Seenivasan was president of the Somerset County Medical Society. To illustrate how his professional and clinical career has made an impact on the lives of others, he was named as one of New Jersey’s "Top Doctors" of 2009, 2012, and 2013 by NJ Monthly Magazine.


Stanley Medical College - Madras, India
Bachelor of Medicine, Bachelor of Surgery, 1986
Post-graduate Surgical Training, 1986-1990

Kent and Middlesex Hospitals, United Kingdom
Surgery Residency, 1991-1995

Maimonides Medical Center - Brooklyn, NY
General Surgery Residency, 1995-2001

University of Pittsburgh
Surgical Oncology Fellowship, 2001-2003


American Board of Surgery
Certified, 2002

Professional Memberships

Fellow, American College of Surgeons

Society of Surgical Oncology